Search for content, post, videos

Mass Infection of Ichthyophthirius multifiliis in Two Ornamental Fish and their Control Measures

Md. Abdullah-Al Mamun, Shamima Nasren, Sanjay Singh Rathore and Md. Moshiur Rahman
Laboratory of Aquatic Health Management, Department of Aquaculture, College of Fisheries, Mangalore-575 002
(Karnataka Veterinary Animal and Fisheries Science University), Karnataka, India
*(e-mail :; Contact : +8801712562673)
(Received : March 23, 2021; Accepted : May 13, 2021)


Two aquarium fish, black angel (Pterophyllum scalare) and gold gourami (Trichopodus trichopterus) were procured from the ornamental shop, Aquatic Biosystems and reared for breeding purposes. After rearing few weeks abnormal behaviour was observed of both the species and after preliminary checkup few white dots were found on the skin and fin surface and appeared as white spot diseases. The ciliate protozoan parasite, Ichthyophthirius multifiliis was identified as an etiological agent by clinical signs, wet mount preparation and histopathology. All the infected fish were shifted and evenly distributed to the glass aquaria for treatment. Two treatments were assigned viz., T1 : Elevated temperature (30°C) with 1% salt and T2 : A commercial product (API® Super Ick Cure) and a control group (C1). Highest recovery was recorded in angels (68%) and gouramies (75%) in T1.
Key words : : Ornamental fishery, angels, gold gourami, white spot diseases, Ichthyophthirius multifiliis